<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<select multiple="multiple">
    <option>北京</option>
    <option>上海</option>
    <option>深圳</option>
    <option>深圳</option>
    <option>深圳</option>
    <option>深圳</option>
    <option>深圳</option>
</select>
</body>
</html>